1228837 has 2 divisors, whose sum is σ = 1228838. Its totient is φ = 1228836.

The previous prime is 1228789. The next prime is 1228841. The reversal of 1228837 is 7388221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1147041 + 81796 = 1071^2 + 286^2 .

It is a cyclic number.

It is not a de Polignac number, because 1228837 - 2¹¹ = 1226789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1228799 and 1228808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614418 + 614419.

It is an arithmetic number, because the mean of its divisors is an integer number (614419).

2^1228837 is an apocalyptic number.

It is an amenable number.

1228837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228837 is an equidigital number, since it uses as much as digits as its factorization.

1228837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 1228837 is about 1108.5292057497. The cubic root of 1228837 is about 107.1103470466.

The spelling of 1228837 in words is "one million, two hundred twenty-eight thousand, eight hundred thirty-seven".